While another user wrote: ‘Mine acts like she’s starving. To me. 2 hours after I fed her.’

Despite their best efforts, Otto still managed to get fed twice on Wednesday. One user said he overheard someone in the supermarket saying their cat hadn’t been fed in three days because both flatmates assumed the other had been feeding it

Emily told BuzzFeed that Otto ‘screams’ at her flatmates for food all the time – leading to the fat cat getting a double feed on Wednesday despite the chart.

She said: ‘Then he licks our doors, and if that doesn’t work he has figured out to open the door. So I fed Otto that morning, and it was about half a can of cat food.

‘I put it in the fridge and then went to class. I came back that evening and found another half of canned cat food in the fridge, only to find out that Shelby ALSO fed him because he yelled at her for food when she woke up.

‘I swear he knows our sleeping schedule.’

One Reddit user asked: ‘Why do cats do this? Why do they ALWAYS act like they have never ate before in they whole life?’

Another joked that the ingenious cat would soon learn to erase the check marks, while SgtSockMonkey said: ‘Next post – my cat has evolved to the point where all human civilization is threatened and we have no chance against the OH LAWD HE COMIN.’

One user joked that Otto would soon learn to wipe the board clean to get an extra bowl of food, while another said they needed a similar system for keeping track of feeding their children